BMW E87 E90 120i 320i N46 ECU ENGINE CONTROL MODULE 0261208582 12147552176.

This ECU cannot be installed directly into another car without programming. It is security-linked to the vehicle’s original EWS/CAS module and key transponder. To install a used unit, you must either transfer the CAS + key set from the donor vehicle, or have an auto locksmith clone the ISN (Individual Serial Number) from your original ECU to this replacement unit.

• Part Type: Engine Control Unit (ECU / DME – Digital Motor Electronics)

• Manufacturer: Bosch (Motronic MEV9.2 system)

• Bosch Part Number: 0 261 208 582 (0261208582)

• BMW Part Number: 12147552176 (7552176)

• Engine Compatibility: BMW N46 / N46B20 (2.0L Naturally Aspirated 4-Cylinder Petrol with Valvetronic)

Vehicle Compatibility

Fits the following BMW models equipped with the N46 2.0L engine:

• BMW 1 Series (E87): 120i hatch (2004–2007)

• BMW 3 Series (E90 / E91): 320i saloon/touring (2005–2007)

• BMW 3 Series (E46): 318i / 320i (late models with N46 engine)

• BMW X3 (E83): 2.0i (2005–2008)

Key Function & Features

• Manages fuel injection, ignition timing, throttle-by-wire (Drive-by-Wire), and Valvetronic variable valve lift integration.

• Interfaces directly with the CAS (Car Access System) unit and EWS immobilizer.

• Plug configuration: Dual multi-pin header socket array housed in a cast aluminum heatsink shell.